X9 Pro

The X9 Pro runs over USB 3.2 Gen 2 (10 Gbps) and is rated for up to 1,050 MB/s read and write — and in independent testing it reliably hits those figures, landing right alongside every other quality Gen 2 drive including the pricier Samsung and SanDisk models. For everyday home-office work — backing up a laptop, moving project files, offloading a camera card — that’s all the speed the task needs.

Under the hood it pairs Micron 176-layer TLC NAND with a DRAM-less Silicon Motion SM2320 controller that uses host memory buffer instead of an onboard cache. For sequential everyday transfers that’s a non-issue, and the drive’s flat aluminum shell helps it stay composed thermally. The honest caveat sits with very large sustained writes: like most DRAM-less drives, once the SLC cache fills on a huge multi-hundred-gigabyte transfer, write speed steps down until it catches up. Most users will never notice; people dumping massive video projects daily are better served by the TLC-with-headroom drives higher in our rankings.

We score Performance at 7.0 (the category’s amber band) for the same honest reason as the rest of the everyday tier: it’s a 10 Gbps drive. The 20 Gbps Crucial X10 Pro and the USB4/Thunderbolt drives are simply faster. The X9 Pro earns its standing on value and reliability, not raw speed.

Bottom line on performance: Full-speed Gen 2 that matches drives costing more, with the usual DRAM-less caveat on enormous sustained writes. Plenty for everyday work; not a video-scrubbing workhorse.

Reliability shares top weighting in our framework, and the X9 Pro is one of the more trustworthy everyday picks for a structural reason: Crucial is Micron’s consumer brand, so the drive uses Micron’s own 176-layer 3D TLC NAND rather than bought-in flash of unknown grade. TLC (not cheaper QLC) means better write endurance and steadier behavior under repeated use, and Crucial backs the drive with a five-year limited warranty — two years longer than the Samsung T7 Shield’s three, and a meaningful signal of confidence for a device you’ll lean on for years.

The one mark against it is the DRAM-less design. A dedicated DRAM cache helps with consistency and sustained random I/O; the X9 Pro does without to hit its price, relying on host memory buffer. In everyday use that’s a reasonable trade, but it’s why this scores 8.0 rather than higher, and why a heavy-write workload favors a drive with DRAM. As always, no single drive is a backup — keep a second copy of anything you can’t afford to lose, regardless of how solid the hardware is.

Bottom line on reliability: In-house Micron TLC and a category-leading five-year warranty make this a dependable daily driver. Only the DRAM-less design keeps it a notch below the very best.

The X9 Pro carries an IP55 rating — protection against dust and low-pressure water spray — and a drop rating of up to 2 meters (7.5 ft), wrapped in a slim anodized-aluminum chassis that feels considerably more premium than its price suggests. At roughly 42 g and about the size of a credit card, it’s genuinely pocketable.

IP55 covers the realistic hazards of a drive that travels in a bag — dust, a splash, the occasional desk-height tumble. What it doesn’t match is the IP65 of the Samsung T7 Shield, which adds resistance to stronger water jets and is the reason the T7 Shield, not the X9 Pro, is our Best Rugged pick. For most home-office users who aren’t working outdoors, IP55 is plenty; if your drive sees real weather or grit, step up to the T7 Shield or an IP68 field drive.

Bottom line on durability: A genuinely tough, pocketable aluminum drive rated IP55 and to a 2 m drop — more than enough for everyday carry, a step below the IP65/IP68 rugged specialists.

The X9 Pro connects over a single USB-C (USB 3.2 Gen 2) port and, being a Gen 2 drive, runs at full speed on essentially any modern USB-C port — Windows, macOS, iPad, Android, PS5, and Xbox all work plug-and-play, with none of the “only-fast-on-the-right-port” caveats of the 20 Gbps Gen 2×2 drives.

One small ding on convenience: Crucial includes a USB-C–to–USB-C cable but no USB-A adapter in the box, where Samsung bundles both. If you’re connecting to an older machine with only USB-A ports, you’ll need your own adapter. And as with every Gen 2 drive, there’s no extra speed to unlock — plug it into a Thunderbolt port and you still get ~1,050 MB/s.

Bottom line on connectivity: Universally compatible at full speed across computers, tablets, and consoles. Just budget for a USB-A adapter if you need one — it’s not included.

Value is the X9 Pro’s headline strength and the reason it’s our Best Everyday Value pick. Among the major-brand Gen 2 drives it’s consistently one of the most affordable, yet it gives up almost nothing that matters: the same ~1,050 MB/s real-world speed, IP55 ruggedness, in-house Micron TLC, and a five-year warranty that several pricier rivals don’t match. It’s offered in 1, 2, and 4 TB, and — as always — the larger capacities deliver the best price-per-terabyte.

Put simply, you’re getting most of what a Samsung T7 Shield or SanDisk Extreme offers for less money, with a longer warranty than the Samsung. The drive you’d choose over it usually costs more (the T7 Shield for ruggedness, the X10 Pro for speed) — which is exactly what a 9.0 on value reflects. (We don’t list prices here because they move constantly; check the current Amazon price before buying.)

Bottom line on value: Near-flagship everyday capability at a budget-leaning price, with a five-year warranty. The best price-to-capability ratio in the everyday tier.

This is the X9 Pro’s weakest area, and it’s where the cost-cutting shows. Unlike Samsung, WD, and SanDisk — which ship their own utilities to set a hardware password lock with AES-256 on the drive — Crucial leaves encryption to your operating system, relying on BitLocker To Go (Windows) and FileVault (macOS). That’s perfectly secure and free, but it’s a manual, OS-dependent step rather than a built-in, cross-platform drive lock, which is why this scores in the amber band. On the software side, Crucial bundles a Mylio Photos+ subscription rather than a polished management suite.

It’s worth keeping in perspective: this category carries only 5% weight, because most people encrypt with their OS tools and run their own backups regardless of what the drive bundles. For a home-office user who’ll use FileVault or BitLocker anyway, the practical gap is small.

Bottom line on software & security: No built-in hardware password lock — you’ll lean on BitLocker or FileVault. Fine for most, but a real step behind Samsung and WD if you want a self-contained encrypted drive.